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Mail Bomb


Mail Bomb



A program that does not fall into any other category.

Disinfection & Removal


For instructions on excluding files from scanning, please see:

Product documentation for various versions of F-Secure products are available on the Documentation section of the website.

Technical Details

F-Secure Anti-Virus can detect certain compressed/archive files that have a big compression ratio (for example 1 megabyte archive or compressed file that expands into tens of megabytes of data) as 'Mail Bomb'.

This does not mean that any infection was found in those files, it's just a warning.

If you have a legitimate file detected as 'Mail Bomb', please exclude it from scanning for both On-Access and On-Demand scanners of your F-Secure Anti-Virus.

Submit a sample

Wondering if a file or URL is malicious? Submit a sample to our Lab for analysis via the Sample Analysis System (SAS)

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